But then I lost all my data on my harddisk due to a failed OS update and a botched rescue mission. When I wanted to play the game I realized of course it was no longer there. I then sent an email to Fastspring and explained the situation and also provided the payment information I got from my paypal account. Just one day later I received emails which contained the download links!

There was no going back and forth, no double or triple checking who I was; no automatic answer like 'did you read the faq' or stuff like that.